[all-commits] [llvm/llvm-project] 1e64e0: AMDGPU: Replace tgsplit subtarget feature with att...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/issue204149/remove-tgsplit-subtarget-feature
  Home:   https://github.com/llvm/llvm-project
  Commit: 1e64e08eee4b2d6d02c81d8d01075a03b95ca527
      https://github.com/llvm/llvm-project/commit/1e64e08eee4b2d6d02c81d8d01075a03b95ca527
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-06-22 (Mon, 22 Jun 2026)

  Changed paths:
    M llvm/docs/AMDGPUUsage.rst
    M llvm/lib/Target/AMDGPU/AMDGPU.td
    M llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUBarrierLatency.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUHWEvents.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUHWEvents.h
    M llvm/lib/Target/AMDGPU/GCNSubtarget.h
    M llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCKernelDescriptor.cpp
    M llvm/lib/Target/AMDGPU/SIInsertWaitcnts.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.h
    M llvm/lib/Target/AMDGPU/SIMemoryLegalizer.cpp
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
    M llvm/test/CodeGen/AMDGPU/lds-dma-workgroup-release.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-av-none.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-fence-mmra-global.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-fence-mmra-local.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-fence.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-agent.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-cluster.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-nontemporal.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-singlethread.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-system.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-wavefront.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-workgroup.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-global-agent.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-global-cluster.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-global-nontemporal.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-global-singlethread.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-global-system.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-global-wavefront.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-global-workgroup.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-local-agent.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-local-cluster.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-local-nontemporal.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-local-singlethread.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-local-system.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-local-wavefront.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-local-workgroup.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-private-agent.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-private-cluster.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-private-nontemporal.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-private-singlethread.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-private-system.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-private-wavefront.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-private-workgroup.ll
    M llvm/test/CodeGen/AMDGPU/schedule-barrier-latency-gfx9.mir
    M llvm/test/CodeGen/AMDGPU/tgsplit.ll
    M llvm/test/MC/AMDGPU/hsa-tg-split.s

  Log Message:
  -----------
  AMDGPU: Replace tgsplit subtarget feature with attribute

This is a per-entrypoint property and has a corresponding
assembler directive, so it should not be baked into the
subtarget. I couldn't find much documentation on what this
actually does, so the description isn't great.

Fixes #204149

Co-authored-by: Claude Opus 4.6 <noreply at anthropic.com>



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